Results 51 to 60 of about 5,465 (214)
EURASIP Journal on Advances in Signal Processing, 2005 Multicarrier CDMA (MC-CDMA) has become a promising candidate for future wireless multimedia communications for its robustness to frequency-selective fading and its flexibility for handling multiple data rates.
Ibars Christian +2 more
doaj +1 more source
Cyclic Prefix-Free MC-CDMA Arrayed MIMO Communication Systems
, 2009 The objective of this thesis is to investigate MC-CDMA MIMO systems where the antenna array geometry is taken into consideration. In most MC-CDMA systems, cyclic pre xes, which reduce the spectral e¢ ciency, are used.
Peh, Ho Huat, Peh, Ho Huat
core +1 more source
International Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.Accurate path loss prediction is vital for 5G deployment, especially at midband frequencies where signal degradation is significant. This paper presents a hybrid model that integrates an optimized COST‐231 Hata model with a random forest algorithm to improve prediction accuracy at 3.5 GHz.
Farouq E. Shaibu +6 more
wiley +1 more source
Visualisasi dan Analisa Kinerja Kode Konvolusi Pada Sistem MC-CDMA Dengan Modulasi QPSK Berbasis Perangkat Lunak [PDF]
, 2011 Pada proyek akhir ini dilakukan analisa kinerja kode konvolusi pada sistem MC-CDMA menggunakan modulasi QPSK. Multicarrier CDMA ini merupakan teknik akses jamak dari CDMA yang menggunakan beberapa subcarrier.
Mamiek , Rizka Rohmah
core
International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.The Internet of Things (IoT) has become a transformative force across various sectors, including healthcare, offering new opportunities for automation and enhanced service delivery. The evolving architecture of the IoT presents significant challenges in establishing a comprehensive cyber‐physical framework. This paper reviews recent advancements in IoT‐
Attiq Ur Rehman +11 more
wiley +1 more source
Performance of STBC MC-CDMA systems over outdoor realistic MIMO channels [PDF]
, 2004 The paper deals with orthogonal space-time block coded MC-CDMA systems in outdoor realistic downlink scenarios with up to two transmit and receive antennas.
Baudais, Jean-Yves +2 more
core +1 more source
Dynamic and efficient device collaborations in 5G‐advanced and 6G networks
IET Communications, Volume 18, Issue 19, Page 1437-1450, December 2024.Collaborative transmission, comprising multiple devices owned by a single user, is progressively evolving into an essential strategy to meet the stringent demands of burgeoning collaborative scenarios in 5G‐advanced and 6G networks. This paper proposes three novel use cases for device collaboration, namely data duplication, data splitting and wireless ...
Xianghui Han +5 more
wiley +1 more source
Turbo equalization with cancellation of nonlinear distortion effects for CP-Assisted and Zero-Padded MC-CDMA signals [PDF]
, 2007 We consider MC-CDMA schemes, with reduced envelope fluctuations. Both CP-assisted (cyclic prefix) and ZP (zero-padded) MC-CDMA schemes are addressed. We develop turbo FDE (frequency-domain equalization) schemes, combined with cancelation of nonlinear ...
Araújo, Teresa +2 more
core +1 more source
IET Radar, Sonar &Navigation, Volume 18, Issue 12, Page 2447-2453, December 2024.A method is presented to passively synchronise data records via GNSS raw signals in a single record requiring only a GNSS antenna, an analogue‐to‐digital converter and computation hardware. The clock bias is estimated via the common view method with either full raw signal correlation or software‐based code correlation of individual signals from the GPS,
Erik Busley +3 more
wiley +1 more source
On receiver design for low density signature OFDM (LDS-OFDM) [PDF]
, 2012 Low density signature orthogonal frequency division multiplexing (LDS-OFDM) is an uplink multi-carrier multiple access scheme that uses low density signatures (LDS) for spreading the symbols in the frequency domain.
Al-Imari, Mohammed +4 more
core +1 more source